CN1922506B - Hand-held device for measuring distances - Google Patents
Hand-held device for measuring distances Download PDFInfo
- Publication number
- CN1922506B CN1922506B CN200580005385XA CN200580005385A CN1922506B CN 1922506 B CN1922506 B CN 1922506B CN 200580005385X A CN200580005385X A CN 200580005385XA CN 200580005385 A CN200580005385 A CN 200580005385A CN 1922506 B CN1922506 B CN 1922506B
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- Prior art keywords
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- housing
- measurement
- distance
- equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1084—Tapes combined with arrangements for functions other than measuring lengths
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
- G01C3/06—Use of electric means to obtain final indication
- G01C3/08—Use of electric radiation detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
- G01S7/4813—Housing arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1061—Means for displaying or assisting reading of length measurement
- G01B2003/1064—Windows, e.g. lenses, glasses or cross-hairs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1041—Measuring tapes characterised by casings
- G01B3/1046—Details of external structure thereof, e.g. shapes for ensuring firmer hold
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1084—Tapes combined with arrangements for functions other than measuring lengths
- G01B3/1092—Tapes combined with arrangements for functions other than measuring lengths for performing length measurements and at least one other measurement of a different nature, e.g. bubble-type level
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1084—Tapes combined with arrangements for functions other than measuring lengths
- G01B3/1094—Tapes combined with arrangements for functions other than measuring lengths for recording information or for performing calculations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Tape Measures (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
The invention relates to a device for hand-held measurement of distances (d) to a surface region of an object (22), comprising a housing (2) and a lens system (3) for the optical measurement of distances (d). Transmission beams are transmitted via the lens system against the surface region and the beams (5) reflected there are recollected. According to the invention, the device additionally comprises a first component (6, 7, 8, 8', 8< > 9) connected to the housing (2) which may be extended beyond the housing for the measurement of short distances in the direction of emission of the transmittedbeams and furthermore which acts as a spacer (9) for the optical measurement. The extended state of the component (6, 7, 8, 8', 8'',9) is automatically determined by a feeler device.
Description
Technical field
The present invention relates to a kind of handheld device that is used to measure apart from the distance in body surface zone, preamble according to claim 1, this handheld device comprises housing and lens combination, and this lens combination is used for the modulate emission beam, and is used for the beam of described emission beam by the surf zone reflection.
Background technology
This handheld device that is used for the optical measurement distance is for many years known, and a lot of present widespread use of handheld device, particularly in building industry.They are used for optical measurement in the measurement terminal point (Messschlag) of equipment and the distance between the object surfaces zone, and the range observation scope from several decimeters up to for example 30 meters, wherein precision is several millimeters.For measuring distance, equipment scioptics system is to the optical beams of the object emission modulation that will measure.At least a portion emission beam by the object surfaces zone along towards the direction of equipment toward back reflective.Beam by the surf zone reflection is collected by the lens combination of leaving emission beam a distance again, and is transformed into electric signal by the receiver of equipment.According to the velocity of propagation of optical beams, by can determine to measure the distance between terminal point and the object surfaces zone to the electric signal evaluation.
According to the parallax between the reflected beam (leaving emission beam certain distance) of emission beam and collection, the reflected beam of collection has increased when measuring from the center of receiver near the distance of the surf zone the lens combination.Usually, more little apart from the distance of lens combination from the surf zone that will measure, emission beam that can be changed by receiver, reflection is few more.Surf zone from lens combination apart from subcritical apart from the time, electric signal will drop under the critical value, therefore, the distance of subcritical distance be measured very unfavorable, perhaps or even impossible fully.Prior art discloses and has been used to make the as far as possible little several measures of critical distance (when being lower than this critical distance will no longer can optical ranging).
DE 43 16 348 A1 for example disclose a kind of anallatic equipment that is used for, and it comprises twin shaft lens combination and the optical fiber that can move in the focal plane of lens combination.Collect, will send receiver to by optical fiber by object reflection and the beam that belongs to by equipment emitted laser bundle.Optical fiber carries out mechanically tracking according to the migration distance of reflected beam.This tracking at first has a negative impact to measuring speed, secondly needs complicated structure.However, still can not the duplet lens system front object in 20 centimetres the critical distance find range.
WO 03/,002 939 A1 disclose a kind of handheld device, and it comprises and be used for anallatic twin shaft lens combination, and comprise fluorescence detector, and this equipment has and forms the bigger photosensitive surveyed area of area in the focal plane.By this bigger surveyed area of area in the focal plane, can detect reflected beam more vast scale, that collect (along with being offset) apart from reducing.But, although the bigger surveyed area of area is arranged, this equipment also has critical distance about 10 centimetres before lens combination, can not carry out optical ranging in this critical distance.In fact, still measure, for example ruler or measurement band by the physical measurement device of maturation than short distance.
Summary of the invention
The objective of the invention is to eliminate the shortcoming of prior art, and provide a kind of handheld device that is used to measure apart from the distance in body surface zone, it comprises housing and lens combination, this lens combination is used for the modulate emission beam, and be used for beam by surf zone reflection, this equipment has littler critical distance, will no longer can find range when being lower than this critical distance.
Another object of the present invention provides a kind of equipment, is used to measure little distance to 0cm.
An also purpose of the present invention provides a kind of equipment, by this equipment, can carry out at least two range observations concurrently, and these range observations can make up alternatively mutually, for example by add, difference is calculated, area is determined etc.
The equipment of the feature of these purposes by having claim 1 realizes, perhaps realizes by improving with other optional form of the corresponding the present invention of the feature of dependent claims or advantageous embodiment or other.
Be used for hand-held the measurement and have housing and be placed on lens combination in this housing according to of the present invention apart from the equipment of the distance in body surface zone.For the distance of optical measurement, become the modulated optical emission beam of beam form to launch towards surf zone by this equipment scioptics system apart from surf zone.The emission beam, collected once more by the part in those beams of surf zone reflection, and carry out the electronics evaluation by evaluation unit, be used for determining the distance of digital measured value form.The distance-finding method of this scioptics system is called photoelectric measurement or optical measurement hereinafter.In addition, equipment has first parts, and these first parts are connected with housing, and extended housing, be used for determining along emission beam propagation direction than short distance.According to the present invention, first parts form like this, and promptly it at first can be used in measurement than short distance, secondly can be as the spacing part of optical measurement.And the present invention also is provided for determining automatically according to the extension of these parts the device of distance.
First parts according to equipment of the present invention are designed to like this, and promptly it can extend beyond the different difference of housing, and can come the distance of physical measurement apart from object with shell combination.Therefore, first parts are designed to like this, promptly in physical measurement, are basically parallel to emission beam ground and guide an end of first parts into object.By determine the relative position between parts and the housing and consider housing at it facing to a side of object with measure between the terminal point along the extension of emission beam direction, can determine to measure the physical measurement distance between terminal point and the object.And first parts also abbreviate parts as, below another parts of describing in embodiments of the present invention will be called another parts or second parts.Below, physical distance measurement or measurement by these parts are interpreted as finding range by these parts.To know obviously that from context this range finding still is to be undertaken by second parts by first parts.
The definite of distance value can realize by different way.
The present invention's imagination utilizes electronic installation cause equipment to determine the measurement of distance.Particularly according to electromagnetism or light action principle, relatively or utterly determine the distance of measuring by parts in self known mode.Preferably, write down the distance of measuring by parts by the contactless type sensor.Measurement terminal point as zero point of range observation is also considered in evaluation unit automatically.Measure the back side that terminal point is defined as housing usually, also be defined as the front portion of housing under specific circumstances.
When parts were integrated in the housing, scale or sign indicating number can be applied on the parts, and can scan by the scanister in the housing (for example optical sensor).To be called (for example photoelectricity, optics or magnetic) hereinafter and scan, read or take out to parts or to the measurement of scale on the parts or sign indicating number by scanister.
According to the structure of the sensor of scanister, evaluation unit is used for the range finding of being undertaken by parts according to considering correction coefficient from sensor apart from the distance of the measurement terminal point of determining.Then, evaluation unit is added to this correction coefficient measured value automatically or deducts this correction coefficient from measured value.Process can be for like this, promptly each optionally measure terminal point (for example back side of shell, housing is anterior or fully or the external part of the parts that not exclusively stretch out) be stored in the evaluation unit, and can select by the key of corresponding measurement terminal point.
Can also regulate single definite measurement terminal point by equipment, and in evaluation unit, be provided for the correction coefficient of each metering system of equipment.According to the selection of metering system (optical measurement, by parts measurement), evaluation unit adopts each correction coefficient automatically, and will be shown distance value for the correcting value meter of measuring terminal point.Preferably, evaluation unit automatically record certainly, can be provided for importing the input media (key that for example is used for photoelectric measurement) of the metering system of selection equally to the selection of metering system.
Can for example scan by scale on reflective scan instrument or the grating pair parts or sign indicating number in a known way.A kind of may be to make parts have transparent and opaque, and stretches out counting light-dark variation in the process by mounting for grating at parts.These parts preferably stretch out automatically.
As known in the prior art at present, can also the magnetic scanning code.Produce magnetic flux in the process if stretch out, also can determine the size of magnetic flux (and outreach) by magnetic flux transducer at parts.Can also use Hall element to carry out the position determines.Parts can also form like this, and promptly parts are drawn out or stretch out automatically to measure, and it snaps in, and when snapping in excitation electron or acoustic pulses.
For example can select sensor according to the lower cost solution of equipment or according to accurate measuring equipment.
At the measurement terminal point of determining automatically to find range and consider automatically to determine (for example considering that housing stretches out), can also when physical measurement, determine the distance value of digital form by parts.Measured value be digital form advantage clearly, particularly handle, store or transmit all the more so for subsequently measured value.Can also be for example by wireless radio transmission or Bluetooth transmission and be transferred to external data processing device with wireless mode.
According to the present invention, first parts form like this, and promptly these parts also can be used for more short-range physical measurement, and it has played the effect of the spacing part of optical measurement.Parts form that the spacing part makes can be by optical method for measuring than short distance.Parts (hereinafter being also referred to as the spacing part) for example stretch out the predetermined regular length of housing along the direction of propagation of emission beam.Regular length that should be predetermined advantageously at least with critical distance the same big (no longer can carry out the optical measurement of surf zone within this critical distance) before the housing, it is by device recording and be transferred to evaluation unit.Evaluation unit is considered part, the self registering predetermined fixed length of spacing at optical ranging, like this, is stretching out state, and being used for optical measurement more short-range zero point is the end of spacing part away from housing.When predetermined regular length is chosen as equally with critical distance at least when big, also can obtain measured value digital form, very short-range by optical measurement.
Other improvement according to equipment of the present invention provides deployable (particularly also can launch automatically) or can stretch out the spacing part that becomes to be scheduled to the state that stretches out automatically.The spacing part can stretch out or be folding, and the selection of metering system can for example send evaluation unit to by pressing button.Automatic record to the driving of spacing part also can carry out with acoustically by for example detecting the click in expansion process.
When the spacing part does not stretch out or is drawn out to predeterminedly when stretching out state, this stretches out state can determine by above-mentioned scanister, and is sent to evaluation unit.Then, evaluation unit is calculated the spacing part with respect to the state that stretches out as the measurement terminal point that is used for optical measurement at zero point (promptly as the measurement terminal point).
In one embodiment, equipment according to the present invention forms like this, promptly except automatic sweep apparatus, can also be determined by reading of user simply by the distance value that parts are measured, and for example reads mark by first scale or first.First scale and first reads mark and can be arranged on the parts or be arranged on the housing.On the other hand, according to the design of parts, first scale can be arranged on the housing, and first reads mark can be arranged on the parts.By appropriate designs first scale, can read mark and directly read by first apart from the physical measurement distance value of object at first scale by the user from measuring terminal point.Read for example to make it possible to read by the user and only wish to be used to obtain information or simply on scale, to check distance value, and do not need digital measurement.
But, the present invention can also carry out by this way, and storage key promptly is provided, and stores each measured value by pressing button after measurement when needed.The measured value that will not be comprised or further handle obtains with digital form, and is shown, if but do not push storage key, then can abolish these measured values automatically.
The second additional scale has been imagined in another improvement of the present invention, and this second scale is arranged on the housing, and is preferably the measurement terminal point its zero point, and advantageously is arranged in the shell rim place near parts.By this second additional scale, even can utilize further so improved equipment to come the physical measurement next-door neighbour to measure the distance of the object of terminal point location.Therefore, in practice, make skilled workers can utilize further so improved individual equipment to determine the distance value of looking for.
Can also further improve by the measurement hook that is arranged in parts one end place according to equipment of the present invention, as common in the situation of measuring band.Back terminal point can be harmonious with the measurement terminal point of equipment.Be used for parts other scale (for example unit for centimetre and inch) and retraction mechanism (having locking device alternatively) it is contemplated that and be other improvement.
Preferably, parts will be retracted in the housing substantially fully, and will remain on the state of stretching out by the power with pre-sizing under the friction adhesive attraction.
In addition, the guiding piece of parts can also form the dust that can remove accumulation.Alternatively, equipment forms like this, and promptly for example by dismountable lid, guiding piece is enterable, so that clean.Also can carry out the replacing of vertical measuring sensor.
In another embodiment, another parts are provided according to present device.At this moment, equipment is for example on two parallel side of housing or be equipped with two parallel components therein.But preferably, this another arrangements of components becomes vertical with first parts according to present device.This embodiment provides even equipment bigger dirigibility, that be used for hand-held range finding has been arranged.Vertical member is specially adapted to for example survey in the turning and in window and door.Especially, can measure two different distance concurrently like this.Parts can be integrated in the housing, for example can be used as roller and stretch out, and perhaps stretch out with stretch mode.Parts can also be integrated in the outer wall of housing.But, parts for example also can form and can fold at an easy rate or pull out as folding ruler, and can be fixed on the outer wall of housing.Therefore, parts for example can be for having collapsible or the form of the ruler of part (having track on inside part) slidably, and can be fixed in the housing outer wall or on the metal rail on it.
The preferred embodiments of the present invention provide one or more parts on device, described parts can stretch out housing in both sides.Therefore, can be for example parts by stretching out back side of shell with the measurement terminal point of equipment to pusher, and equipment can for example be used to measure the distance apart from point that can not be approaching.
Description of drawings
Nine measurement scheme that schematically illustrate are below with reference to the accompanying drawings introduced the present invention in more detail, wherein eight of with good grounds present device working examples.Each working example all comprises assemblage characteristic.Here, the feature of different operating example can make up, so that provide other favourable combination.The same section of carrying out identical function in the different operating example is represented with identical label and Reference numeral.
Accompanying drawing schematically shows as follows:
Fig. 1 represents to be used for optics and physical measurement first measurement scheme apart from cubical distance, and shows first working example according to equipment of the present invention with the planimetric map of broken section;
Fig. 2 is with first measurement scheme of side view presentation graphs 1;
Fig. 3 represents to be used for physical measurement apart from cubical very short-range second measurement scheme, and shows first working example with side view;
Fig. 4 represents to be used to measure the 3rd measurement scheme of cubical size, and shows first working example that is in rollover states with side view;
Fig. 5 represents to be used for physical measurement apart from cubical very short-range the 4th measurement scheme, and shows second working example according to equipment of the present invention with the planimetric map of broken section;
Second measurement scheme of Fig. 6 presentation graphs 3, and show second working example with planimetric map;
Fig. 7 represents the 5th measurement scheme device, and cube and angle-shaped piece are wherein arranged, and shows second working example with planimetric map;
The 4th measurement scheme of Fig. 8 a presentation graphs 5, and show the 3rd working example according to equipment of the present invention with planimetric map;
Fig. 8 b schematically illustrates the part of the sounding rod of Fig. 8 a, and grating is wherein arranged;
Fig. 9 represents the 6th measurement scheme, and shows the 4th working example with another parts of equipment of the present invention with sectional plan view;
Figure 10 represents to be used to measure the 7th measurement scheme of the degree of depth in cubical hole (representing with cut-open view), and shows the 5th working example according to equipment of the present invention with side view;
Figure 11 represents the 8th measurement scheme and angle-shaped piece, and shows the 6th working example according to equipment of the present invention with sectional plan view;
Figure 12 represents the 9th measurement scheme and cube, and shows the 7th working example with sectional plan view;
Figure 13 represents the 9th measurement scheme of Figure 12, and shows the 8th working example with sectional plan view.
Embodiment
Fig. 1 has represented to be used for optics and physical measurement first measurement scheme apart from d apart from object (being expressed as cube 1 here) surf zone, and shows first working example according to handheld device of the present invention with the biopsy cavity marker devices planimetric map.
The working example according to equipment of the present invention shown in the figure all has housing 2 in all cases, and its length for example is 15 centimetres.The lens combination 3 of only analysing and observe expression in Fig. 1, Figure 11, Figure 12 and Figure 13 is placed in a side of housing 2, is used for optical ranging.Here, lens combination 3 has radiating portion and is arranged near the receiving unit of this radiating portion.In all cases, radiating portion and receiving unit are respectively the emission path of equipment and a part of accepting path.As common in this measurement mechanism, the back side 20 of housing 2 (this back side 20 is relative with a side of putting into lens combination 3) forms the measurement terminal point.When measuring distance d, described measurement terminal point is generally the zero point of this distance.
As shown in Figure 1, the optical emitting beam 4 of modulation is by being used for optical measurement apart from the emission path of d and towards cube 1 emission.In this working example, housing 2 does not equal the length of housing 2 just along the development length e of the direction of propagation between the lens combination 3 and the back side 20 of emission beam 4.But, according to the layout of the measurement terminal point on housing 2, this size also can be other value.
Because the optics that transmits and receives path how much situations of working example, thus have only when the surface away from lens combination 3 at least during critical distance (being about 10 centimetres here), just can detect the emission beam 5 that the surface scattering of cube 1 is reflected.Therefore, working example has the critical distance c shown in Fig. 1 (at this moment being about 25 centimetres), and this critical distance c is between the back side 20 and the cube face zone by 4 irradiations of emission beam as the measurement terminal point.To no longer can carry out optical measurement during the subcritical distance c.By with the corresponding measurement mechanism of working example, can on the critical distance c up to be generally 30 meters apart from the scope of d in the distance on distance scattered reflection surface is carried out optical measurement.
According to the present invention, working example shown in the figure has first parts, and these first parts are connected with housing 2, forms to be used to measure than short distance and as the spacing part of photoelectric measuring device.Only show the function of this component physical measuring distance d in Fig. 1 to Figure 10, these parts also can be as the spacing part of photoelectric measurement certainly.
In first working example of Fig. 1 to Fig. 4, these parts are for measuring the form with 6.Measurement for example can be made by arc resilient flexibility steel band with 6.Measurement has first scale 10 (only among Fig. 2 represent) away from a side of launching beam 4 with 6 in Fig. 1, in the side facing to emission beam 4 the 3rd scale 13 (only representing in Fig. 4) is being arranged.
Here, the length of measuring with 6 is shorter than housing 2 slightly.Therefore, measurement can be retracted in the housing 2 with plain mode fully with 6 (does not also need to be used for the independent deflection or the roll-up mechanism of this purpose).Therefore, measure with this length of 6 not only can physical measurement at the critical distance a of lens combination 3 with interior apart from d, but also can be near critical distance and physics and optical measurement apart from carrying out physical measurement in all feasible overlapping region of d.Therefore, improved the convenience of operation, also improved measuring reliability in addition in self known mode.
In first working example, measure the form that becomes to measure hook 16 with 6 extended end.But, this end also can be directly formed with 6 end face by measurement.Here, measure hook 16 and be with 6 to be connected with measurement in a manner known way, so that can change the material thickness of (verschiebbar) described measurement hook.Therefore, can measure easily according to the 3rd measurement scheme of Fig. 4.
In first working example, measure and to be with 6 to guide by unshowned guiding piece among Fig. 1 to Fig. 3, and integrally formed with housing 2.For example, by be pressed on the parts felt or by the prestretched spring element, thereby friction force is applied on the parts, like this, at first can under situation about not applying more energetically, regulate, secondly, measure and be with 6 to adhere to the state of stretching out that remains by friction.
As shown in Figure 1, as the optional form of optical measurement, also can by with the measurement of housing 2 combination be that the parts of form carry out physical measurement to distance cube 1 surface apart from d with 6.For physical measurement apart from d, in first step, by means of measurement with between 6 surf zones of measuring cube 1 (this surf zone is by 4 irradiations of emission beam) and the lens combination 3 along the distance of the direction of propagation of emission beam 4.For this reason, measure and originally to be parallel to emission beam 4 ground with an end group of 6 and to cross housing 2 and guide cube 1 into.For measure as between the back side 20 of measuring terminal point and cube 1 surface apart from d, in first measurement scheme, make and measure with surface, 6 end against cube 1, determine automatically then to measure with 6 and housing 2 between relative position.The definite of this relative position carries out first scale 10 that this scanner scanning is shown in Figure 2 by the reflective scan instrument in the housing 2.Should determine and to be undertaken by scanning the 3rd scale 13 shown in Figure 4.Consider along the direction of emission beam 4 from lens combination 3 20 housing development length e to the back side, in second step, determine to measure between terminal point and cube 1 surface apart from d, and export as digital value.
By means of being the parts of form with 6 with measurement, by equipment according to the present invention, can carry out physical measurement, be determined automatically with the simple mode d (particularly in the length of housing 2 and the scope between the optical measurement critical distance c apart from d) that adjusts the distance, and should distance export as digital value.
First working example has the reflective scan instrument, and this reflective scan instrument is as being used for determining the electronic installation of measurement with relative position between 6 (these examples) and the housing 2.This electronic installation can drive by the key on the housing.Therefore, also the situation with optical measurement is the same, can determine the digital value apart from d, and can be with its indication on display 17.Preferably, the value of digital form can also be stored (as at present common in optical ranging) by device, and can further be handled or transmit.
Digital value can also convert other reference frame without a doubt to, for example with housing 2, relative front portion with the back side 20 as zero point.The slightly little value that illustrates on the display 17 (for example being 13.5 centimetres here) is corresponding to the distance between cube 1 surface and housing 2 front portions.
In addition, as shown in Figure 2, the user can read mark 11 by for example being arranged in first on the housing 2, on first scale 10 that is arranged on measuring with 6, directly read physical measurement apart from d.
Fig. 2 has represented the measurement scheme of Fig. 1 with side view.Having first amplification of reading mark 11 reads window and is arranged in being parallel to of housing 2 and measures with in 6 the side surface.First scale 10 is designed to like this, promptly reads mark 11 by first, and the user can directly read the value (here be 28.5 centimetre) of physical measurement apart from d.
It is also contemplated that the optional working example that does not read window.Apart from the value of the measuring distance d of cube 1 for example also can be on optional first scale by reading the front portion of mark and directly read as optional first.At this moment, this optional first scale will skew is arranged slightly be arranged in to measure and be with on 6 with respect to first scale 10.
By this improvement according to equipment of the present invention, the user can be with on 6 or reads the physical measurement distance reading mark 11 places in measurement, and does not obtain the digital distance value automatically.The user can determine whether to start electronic installation and determine to measure with 6 position automatically or just read this value (for example being used for checking subsequently).
Fig. 3 represents to be used for second measurement scheme of apart from d carrying out physical measurement very short to distance cube 1, and with side view first working example is shown.
Fig. 4 represents the 3rd measurement scheme with side view, wherein, measures the size b of cube 1 by first working example that is in rollover states.The 3rd scale 13 is arranged in to be measured with a side 6, that face toward the emission beam 4 of Fig. 1.Opposite with first scale 10 that is arranged in opposite side of Fig. 2, here, are extended ends of measuring with 6 zero points of the 3rd scale 13.Utilize the 3rd scale 13, can be by the measurement of stretching out with 6 with the very little size of mode Measuring Object or the relatively little distance between the object simply and easily.
The front portion of reading mark by the conduct of housing 2, can also be directly read out on the 3rd scale 13 measure with between 6 external part and the housing 2 apart from f.In case starting is used to scan the automatic sweep apparatus of the 3rd scale 13, just can be with the value of digital form output apart from f.In order to read two scales 10,13 of measuring with 6 automatically, two scanister should be set in housing.Can also be identically formed housing 10,13, thereby single scanister is provided.
Except utilize to measure with 6 determine cube 1 size b and apart from housing apart from the f, all right photoelectric measurement apart from cube 1 apart from f '.
Fig. 5 represents the 4th measurement scheme and cube 1, and biopsy cavity marker devices show second working example according to present device.
Therefore Fig. 5, Fig. 6 and Fig. 7 represent the planimetric map and the partial sectional view of second working example, can see the parts that are sounding rod 8 forms and the guiding piece integrally formed with housing 2 thereof.
Here, sounding rod 8 is provided with actuator lever 19.Different with first working example, the scale of distance, spacing or size that second working example does not have to make the user directly read object.Here, sounding rod 8 comes photoelectricity to determine that apart from the length of determining to have considered housing 2 of d, and described distance is reproduced on the display 17 with respect to the position of housing 2 by being applied to sounding rod 8 lip-deep bar codes.Preferably, the length of sounding rod 8 is identical with housing 2.
In the 4th measurement scheme of Fig. 5, the same with in first working example utilizes second working example to carrying out physical measurement apart from d between the surface of the back side 20 of housing 2 and cube 1.Therefore, by with the front end guidance of sounding rod 8 surface, determining relative position automatically, and be reproduced on the display 17 with the corresponding distance of parts front end (being 18 centimetres here) to cube 1 with respect to the motion of housing 2.
Second measurement scheme of Fig. 6 presentation graphs 3, it is used for determining from the back side 20 of housing 2 apart from the very short digital value apart from d on cube 1 surface, and with the planimetric map biopsy cavity marker devices show the cube 1 and second working example.
For this reason, as shown in Figure 6, the rear end of sounding rod 8 is positioned at above the surface of the cube 1 that will measure, determines relative position automatically, and be reproduced on the display 17 apart from d (being 3 centimetres here) with the rear end is corresponding.
Fig. 7 is with plan representation the 5th measurement scheme, and second working example of cube 1 and angle-shaped piece 22 and biopsy cavity marker devices.
Utilize second working example, can by make sounding rod 8 cross front end that the back side 20 moves to sounding rod 8 arrive want surface measurements above, come definite back side 20 from housing 2 apart from cube 1 surface apart from d.At this moment can begin to measure, and can be reproduced on the display 17 with the corresponding distance of front end with the corresponding distance in rear end (for example be respectively here 12 and-3 centimetres).
With similar among Fig. 7, the rear end that the size g of the step of angle-shaped piece 22 also can be by sounding rod 8 (this rear end cross the back side 20 stretch out) here, determined with digital form.
The 4th measurement scheme of Fig. 8 a presentation graphs 5, and according to the 3rd working example of equipment of the present invention.Here, sounding rod 8 ' does not have scale or sign indicating number, but the figure with alternately opaque and clear bar.Fig. 8 b schematically illustrates the part of sounding rod 8 ', and grating is wherein arranged, and this grating has transmitter 1 and detecting device 1 '.Be illustrated by the broken lines by transmitter 1 emission and the laser beam that detects by detecting device 1 '.Sounding rod 8 ' and grating are arranged in the housing 2 of Fig. 8 a.Sounding rod 8 ' stretches out from housing 2 automatically, and in a known way bright-Hei variation or bar is counted by grating.By the bar of this counting, will utilize the distance of sounding rod 8 ' physical measurement to be defined as digital value.The measurement terminal point that numeral demonstrates slave unit apart from cube 1 surface apart from d.In order to export or to show this distance value, can select as measuring between the terminal point at back side of shell 20 and housing front portion.Here, the value of measuring as measuring terminal point from back side of shell 20 or housing front portion corresponds respectively to the range of a signal value of 18 centimetres or 3 centimetres.
Fig. 9 represents to be used to survey the 6th measurement scheme of framework R, and show the 4th working example with the planimetric map of broken section, therefore can see with sounding rod 8 ", 8 ' " to be the guiding piece integrally formed of two parts of form and they with housing 2 according to equipment of the present invention.Here another or second parts of the form of " first parts of form, hand-held distance-measuring equipment be furnished be sounding rod 8 ' ", except being sounding rod 8.Sounding rod 8 " and 8 ' " with the integrally formed transparent guiding piece of housing 2 in guide, and can stretch out automatically.Guiding piece or sounding rod 8 ", 8 ' " are arranged to vertically and a little depart from mutually.When parts than the length of housing or width in short-term, can planar realize being arranged vertically.Here, sounding rod 8 ", 8 ' " is provided with the sign indicating number that carries out magnetic scanning.Therefore, in housing 2, arrange two scanister.The numeral of 21 centimetres and 10 centimetres shows that measured value is corresponding to the back side of distance housing and distance value d, the j of lateral edges (respectively as measuring terminal point).With first parts of present device (for sounding rod 8 " form) vertical, becomes sounding rod 8 ' " structure of another parts of form be particularly suitable for surveying window for example and the inside dimension of frame parts.Preferably, two parts can both stretch out from housing in both sides.
Figure 10 represents for example to be used to measure the 7th measurement scheme of degree of depth h in the hole (representing with cut-open view) of cube 18, and represents the 5th working example according to equipment of the present invention with side view.
The 5th working example has housing 2 and linear measure longimetry module 21, and this housing 2 has unshowned receiver among Figure 10, and in this linear measure longimetry module 21, parts that are measurement axis 7 forms are directed.Linear measure longimetry module 21 removably is connected with housing 2 by this receiver.Here, measurement axis 7 is the form of the object of shaft-like, the suitable rigidity that for example can be made of plastics.
Different with first working example, here, first scale 10 (being used to read the physical measurement distance of Fig. 1) is not arranged in measurement axis 7, but is arranged on the linear measure longimetry module 21.In addition, the 4th scale 14 (here, be the front portion relative with the back side 20 zero point of the 4th scale) also is arranged on the linear measure longimetry module 21.Here, the first and the 4th read the rear end that mark 11 and 15 is arranged in measurement axis 7.
In order to determine the degree of depth g in hole, the front portion of housing 2 is arranged to against cube 18, and measurement axis 7 is shifted onto the bottom in hole.The degree of depth h in hole can read mark 15 and reads on the 4th scale 14 by the 4th.
Linear measure longimetry module 21 forms like this with the removably connecting of receiver of housing 2, and promptly in connection status, the first and the 4th scale 10 and 14 has the precalculated position with respect to anterior and the back side 20 respectively.This can be for example realizes in self known mode by setting element.
The modular designs of parts and guiding piece thereof has such advantage, and promptly handheld device can be retrofit into and be used to measure very short distance.
In Fig. 1 to Figure 10, equipment according to the present invention is provided with first parts (being expressed as various forms), and these parts only show its function as distance measuring equipment.In Figure 11 to Figure 13, will the measurement scheme of wherein said first parts as the spacing part be described.But, certainly also can be multi-form with it respectively according to first parts (these parts are shown in Fig. 1 to Figure 10) of equipment of the present invention as the spacing part.
Figure 11 is with plan representation the 8th measurement scheme, and comprising angle-shaped piece 22 with according to the 6th working example of equipment of the present invention, this working example is represented with partial sectional view.
The 6th working example has the parts that are spacing part 9 forms.Here, spacing part 9 is connected with housing 2 pivotly by pin 23.
Distance between the back side 20 of housing 2 (this back side 20 forms and measures terminal points) and the object enough far away is being carried out in the traditional optical measurement, and spacing part 9 is lowerd into the screw-in state in housing 2.On the other hand, measuring short and very shortly during, spacing part 9 is being screwed out, and therefore beginning to cross housing 2 and stretch out (along the direction of propagation of emission beam 4) predetermined regular length i from lens combination 3 apart from d.
In the situation of the first five working example, by guiding an end of parts into will measure surface with respect to the motion of housing 2, thereby physical measurement short and very short apart from d.Alternatively, in the 6th working example, spacing part 9 is screwed out.At this moment the measurement terminal point of Shi Yonging no longer is the back side 20 of housing 2, but the back-out end of spacing part 9.
If as shown in figure 11,, then guarantee to keep critical distance a, thereby very short distance also can optical measurement when predetermined regular length i is chosen as the same with critical distance a at least greatly.At this moment, even without the isolated system that is used for determining the relative position between parts and the housing 2, measured value also is a digital form.
Advantageously, the predetermined device that stretches out state that working example has is unshowned among Figure 11, be used to write down spacing part 9, for example simple mechanical switch.When equipment records of the present invention screws out when becoming to be scheduled to stretch out state to spacing part 9, then in the process of determining apart from d, automatically the front end of spacing part 9 is thought the zero point of range of a signal d (for example being 3 centimetres here).On the other hand, when carrying out the traditional optical measurement by screw-in spacing part 9, can be by means of pen recorder, the automatic zero point that terminal point and measuring distance are thought to measure in the back side 20.Like this, can prevent from described two different measurement terminal points are assigned to each different range finding type mistakenly.
Figure 12 represents the 9th measurement scheme, wherein has the cube 18 of Figure 10, and with the biopsy cavity marker devices sectional view the 7th working example has been shown.
Different with the 6th working example, spacing part 9 can not screw out, but connects into extended with housing.Stretching out state, spacing part 9 (this spacing part 9 is the axle shape here) presses the retainer of housing 2 by spring (only schematically showing among the figure), and extends beyond housing 2 predetermined length i.The 5th working example advantageously is provided with the device (this device is not shown) that is used to write down the spacing part 9 that extend out to retainer equally.
Here, the length i of spacing part is greater than the 6th working example of Figure 11, and therefore, the measurement range of the measurement of correlation that can be undertaken by this measurement scheme is bigger.
Figure 13 wherein shows to biopsy cavity marker devices the 8th working example with the 9th measurement scheme of plan representation Figure 12.Spacing part 9 extend out to measurement point automatically, and remains on this position.Sensor comes the extended position of recording-member by the scale on the sweep unit (this scale is not shown in Figure 13).Then the external part of parts is thought to be used for anallatic measurement terminal point.
Claims (15)
1. one kind is used for hand-held the measurement apart from the equipment of the distance (d) of object (1,18,22) surf zone, comprising:
Housing (2),
Lens combination (3), this lens combination are placed in the described housing (2), and will be used for modulate emission beam (4) and be used to launch the beam (5) by surf zone reflection of beam (4), and are used for electro-optical distance measurement, and
First parts (6,7,8,8 ', 8 ", 9), these first parts are connected with housing (2), and can cross housing (2) along the direction of propagation of emission beam (4) and stretch out, be used for determining than short distance (d),
Wherein:
First parts (6,7,8,8 ', 8 ", 9) both formed be used for measuring between zero point that the measurement terminal point (20) by housing (2) provides and the surf zone than short distance, also form the spacing part that is used for electro-optical distance measurement, and
The device that is used for determining automatically according to the situation of stretching out of first parts (6,7,8,8 ', 8 ", 9) distance is provided, and this determines that automatically the device of distance is used to find range and is used for fixing zero point of photoelectric measurement.
2. equipment according to claim 1 wherein, is used for determining automatically that the device of distance comprises:
Optics or
Magnetic or
Acoustics or
Sense of touch or pressure-sensitive sensor.
3. equipment according to claim 1 and 2, wherein, described equipment has at least one another parts (8 ' "), and (8 ") are vertical with being used for measuring more short-range first parts for this another arrangements of components one-tenth.
4. equipment according to claim 3, wherein, described another parts (8 ' ") are furnished with and are used for determining automatically more short-range device.
5. according to the described equipment of aforementioned claim 1, wherein
Described first parts (9) are crossed described housing (2) and are stretched out predetermined regular length (i), are used for photoelectric measurement than short distance (d), and
Stretch out in the state in the predetermined of described first parts (9), be the end away from described housing (2) of described first parts (9) zero point of measuring than short distance (d).
6. equipment according to claim 5 wherein, provides the predetermined device that stretches out state that is used to write down described first parts (9).
7. according to claim 5 or 6 described equipment, wherein: described first parts (9) can screw out or extend out to be scheduled to stretch out state, and locks.
8. equipment according to claim 3, wherein
Described first parts (6,7,8,8 ', 8 ", 9) and/or another parts (8 ' ") be furnished with
Scale or
Sign indicating number.
9. equipment according to claim 3, wherein, described first and/or another parts be a kind of in the following optional form:
Elastically deformable is strips,
As the elongated object that is actually rigidity,
Be arranged in the linear measure longimetry module, this linear measure longimetry module removably is fixed on described housing (2) by socket.
10. equipment according to claim 3, wherein, the guiding piece of described first parts (6,7,8,8 ', 8 ", 9) and/or another parts (8 ' ") forms like this, and promptly it adheres to by friction and remains on extended position.
11. equipment according to claim 3, wherein, the far-end of described first parts (7,8) and/or another parts is for measuring the form of hook (16).
12. equipment according to claim 11, wherein, the material thickness of described measurement hook (16) can change.
13. equipment according to claim 1, wherein, the 3rd scale (13) is arranged on described first parts (6,7,9), and be the sides of described first parts (6,7,9) away from described housing the zero point of the 3rd scale.
14. equipment according to claim 1, wherein, at least one that is used to find range second scale (12) is arranged in described housing (2), and be to measure terminal point (20) zero point of this second scale.
15. equipment according to claim 4, wherein, described being used for determines that automatically more short-range device is optics, magnetic, acoustics or sense of touch or pressure-sensitive sensor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04003784A EP1566658A1 (en) | 2004-02-19 | 2004-02-19 | Handheld apparatus for measuring distances |
| EP04003784.8 | 2004-02-19 | ||
| PCT/EP2005/001703 WO2005083465A1 (en) | 2004-02-19 | 2005-02-18 | Hand-held device for measuring distances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1922506A CN1922506A (en) | 2007-02-28 |
| CN1922506B true CN1922506B (en) | 2010-04-21 |
Family
ID=34707324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580005385XA Expired - Fee Related CN1922506B (en) | 2004-02-19 | 2005-02-18 | Hand-held device for measuring distances |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20070206174A1 (en) |
| EP (2) | EP1566658A1 (en) |
| JP (1) | JP4808637B2 (en) |
| CN (1) | CN1922506B (en) |
| AT (1) | ATE365929T1 (en) |
| DE (1) | DE502005000946D1 (en) |
| WO (1) | WO2005083465A1 (en) |
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| DE102005036033A1 (en) * | 2005-08-01 | 2007-02-08 | Robert Bosch Gmbh | Distance measuring Equipment |
| DE102006013707A1 (en) * | 2006-03-24 | 2007-09-27 | Robert Bosch Gmbh | Hand-held device e.g. laser rangefinder, for measuring distance, has electro-optical display reproducing measuring results, where distance measuring values are assigned to partial section of distance between object and end by ruler scale |
| DE102006013695A1 (en) * | 2006-03-24 | 2007-09-27 | Robert Bosch Gmbh | Electro-optical display unit for hand-held length measuring device e.g. roller-tape, has digital display comprising variable scale with scale point and numerical value, where orientation of scale is changed relative to display unit |
| EP1840593A1 (en) | 2006-03-29 | 2007-10-03 | Leica Geosystems AG | Calibratable distance meter and method for calibrating such a meter |
| KR100750897B1 (en) * | 2006-09-26 | 2007-08-22 | 삼성중공업 주식회사 | Dimension measurement system and rescale method using indoor global positioning system |
| DE102008042440A1 (en) * | 2008-09-29 | 2010-04-01 | Robert Bosch Gmbh | Device for measuring length and adapter for receiving a device for measuring length |
| ES2366564T3 (en) * | 2008-11-20 | 2011-10-21 | Sick Ag | OPTOELECTRONIC SENSOR. |
| DE102009047387A1 (en) * | 2009-12-02 | 2011-06-09 | Robert Bosch Gmbh | Distance measuring device for non-contact distance measurement with integrated protractor |
| CN102200579A (en) * | 2010-03-25 | 2011-09-28 | 付陆欣 | Handheld pulse laser range finder |
| DE102010062161A1 (en) | 2010-11-30 | 2012-05-31 | Hilti Aktiengesellschaft | Distance measuring device and surveying system |
| DE102010062172A1 (en) | 2010-11-30 | 2012-05-31 | Hilti Aktiengesellschaft | Distance measuring device and surveying system |
| RU2585474C2 (en) * | 2010-12-15 | 2016-05-27 | ПЭКСАЙЗ,ЭлЭлСи | Apparatus, systems and methods of using hand-held measurement devices for creation of package by request |
| CA2827786C (en) | 2011-03-22 | 2017-11-14 | Leica Geosystems Ag | Electro-optical distance measuring device with gesture measurement triggering that functions without contacting the measuring device |
| JP2014021703A (en) * | 2012-07-18 | 2014-02-03 | Sony Corp | Pointing device and imaging device |
| JP6442147B2 (en) * | 2013-03-12 | 2018-12-19 | 日鉄住金テックスエンジ株式会社 | Dimensional measuring device |
| EP3012581B1 (en) | 2014-10-22 | 2017-03-29 | Leica Geosystems AG | Sighting device for electro-optical measurement devices |
| CN106501814B (en) * | 2016-12-09 | 2023-12-01 | 河南双汇投资发展股份有限公司 | Laser measuring fat instrument |
| EP3467541B1 (en) | 2017-10-05 | 2022-01-05 | Leica Geosystems AG | Sensor module |
| JP7027010B2 (en) * | 2018-08-07 | 2022-03-01 | 東芝三菱電機産業システム株式会社 | Distance measuring device |
| JP7139088B2 (en) * | 2018-08-07 | 2022-09-20 | 東芝三菱電機産業システム株式会社 | distance measuring device |
| US11920777B1 (en) | 2021-12-30 | 2024-03-05 | Nino Romeo Stenta | Tape measure light attachment |
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| US5433014A (en) * | 1994-09-19 | 1995-07-18 | Falk; David C. | Digital tape rule with transmitter |
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| US6928029B2 (en) * | 2003-11-20 | 2005-08-09 | Brandon Rickman | Combination tape measure and range finder |
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- 2004-02-19 EP EP04003784A patent/EP1566658A1/en not_active Withdrawn
-
2005
- 2005-02-18 AT AT05707508T patent/ATE365929T1/en not_active IP Right Cessation
- 2005-02-18 US US10/589,884 patent/US20070206174A1/en not_active Abandoned
- 2005-02-18 DE DE502005000946T patent/DE502005000946D1/en active Active
- 2005-02-18 CN CN200580005385XA patent/CN1922506B/en not_active Expired - Fee Related
- 2005-02-18 JP JP2006553549A patent/JP4808637B2/en not_active Expired - Fee Related
- 2005-02-18 WO PCT/EP2005/001703 patent/WO2005083465A1/en active IP Right Grant
- 2005-02-18 EP EP05707508A patent/EP1718989B1/en not_active Not-in-force
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| US5433014A (en) * | 1994-09-19 | 1995-07-18 | Falk; David C. | Digital tape rule with transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| US20070206174A1 (en) | 2007-09-06 |
| JP4808637B2 (en) | 2011-11-02 |
| WO2005083465A1 (en) | 2005-09-09 |
| EP1566658A1 (en) | 2005-08-24 |
| DE502005000946D1 (en) | 2007-08-09 |
| ATE365929T1 (en) | 2007-07-15 |
| EP1718989A1 (en) | 2006-11-08 |
| EP1718989B1 (en) | 2007-06-27 |
| CN1922506A (en) | 2007-02-28 |
| JP2007524093A (en) | 2007-08-23 |
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